No spoilers here, but it was only after bumbling through the first handful of levels before decisions needed to be made as to the direction my player character would go in. (thesixthaxis.com)
On a handful of levels, Modern Sonic will partner with the Rookie, bringing in a team gameplay style similar to Sonic Heroes. (seganerds.com)
Kirby Star Allies has three main over-worlds to explore, each with a handful of levels and unlockable secret levels. (cogconnected.com)